Feeder for stone-sawing machines



(No Model.) 7 2 sheets-81188 1.

P. GHRISTA. 8

FEEDER FOR STONE SAWING MACHINES. No. 384,125[ 8 Patented June 5. 1888.

NY FUERS. Pmloulhu n mr. Walhinglum DJ;

(No Model.) 2 SheetSI-Sheet 2.

P.,GHRISTA.

FEEDER FOR STONE SAWING MACHINES.

N0..384,125. PatentedJun B, 1888.

UNITED STATES PATENT OFFICE.

PHILIP OHRISTA, on DETROIT, MICHIGAN.

FEEDER FOR STONE-SAWING MACHINES.

SPECIFICATION forming part of Letters Patent No. 384,125, dated June 5,1888.

Application filed November 1, 1887. Serial No. 253,996.

To aZZ whom it may concern.-

Be it known that l, PHILIP OHRIsTA, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented a new and useful Improvement in Feeders for Stone-\VorkingMachines, of which the following is a specification.

My invention relates to an improvement in feeders for stoneworkingmachines; and it consists in the peculiar construction and combinationof devices, that will be more fully set forth hereinafter, andparticularly pointedout in the claims.

In the accompanying drawings, Figure l is a side elevation, partly insection, of a feedingmachine embodying my improvement. Fig. 2 is an endelevation of the same. Fig. 3 is a top plan view. Figs. 4 and 5 aredetached sectional views on the lineszr m, Fig. 2, and y y,respectively, of Fig. l. I

A represents a hopper of suitable size and shape, which is provided atone end with a trough, B. The said trough has its front end, 0,1owerthanits sides, as shown.

D represents a water-pipe, which discharges into the hopper, and isprovided with a valve, E, by means of which the flow of water to thehopper may be regulated.

F represents an inclined waterelevating screw, which has its lower endarranged over the trough B and bears upon anti-friction rollers G, whichare j ournaled in suitable supports, H. From the upper end of theelevatingscrew projects a shaft, I,which'isj0urnaled in a bearing at thelower end of the hanger K. Acylindrical case, L, incloses the screw. Theupper end of this case is open and is provided with a projectingcircular flange, M, and the lower end of the case is closed and isprovided with a curved, radial, hollow cylindrical scoop or arm, N, theouter end of which is funnelshaped, as shown. As the water elevatingscrew rotates, its inclosing-ease rotates therewith, and at eachrotation of the screw and case the arm N scoops up a supply of water andgrits or sand from the trough B and feeds the same to the screw.

0 represents a miter gear wheel, which is attached to the shaft I at asuitable distance from its outer end.

P represents a horizontal shaft,which is arranged at right angles to thescrew F, and is (No model.)

journaled in bearing-boxes at the lower ends of a pair of hangers, B.One end of this shaft is provided with a miter pinion, S, which mesheswith the wheel 0. The said shaft is further provided with a similarmiter-pinion, T, and with a belt-pulley, U.

V represents a horizontal hollow tubular shaft, which isjournaled in apair of bearings at the lower end of hangers W, the said tubular shaftbeing arranged at right angles to the shaft P. To the inner end of thetubular shaft V is secured a miter-wheel, X, which meshes with the wheelT, and near the outer end of the said tubular shaft V is a miterwheel,Y.The inner end of the tubular shaft is closed and the outer end thereofis open.

Z represents a pair of curved hollow scooparms, which are attached tothe tubular shaft V near the inner end thereof and communicatetherewith.

A represents a trough, which is arranged horizontally under the innerendof the hollow tube V, and extends outward and is arranged under theupper end of the screw F. This trough is supported upon arms B, which depend from the hangers It.

0 represents a sieve,which is arranged longitudinally in the trough andin a vertical position therein, asshown, thereby confining a space orchamber, D, in one side of the trough, in which the outer ends of thescoop-arms Z operate.

E represents an arm,which projects radially from the inner end of thetubular shaft and is adapted to sweep over the bottom of the trough andthe outer side of the sieve.

F represents a vertical shaft,which has its upper end journaled in avertical bearing, G. This shaft is provided with a miter-wheel, H, whichmeshes with the wheel Y, and its lower end is fitted in the upper end ofa vertical tubular sleeve, 1, which sleeve has its upper end providedwith a funnel, K, thatis arranged under the outer end of a tubularshaft, V. A beveled flange, L, is formed with the shaft F immediatelyabove the outer end of the tubu lar shaft V.

M represents a short vertical pipe, which fits over the lower end of thesleeve 1, and is secured thereto at any desired adjustment by means ofaset-screw, N. From the lower end of the pipe M radiates a pair ofhorizontal tubular arms, 0, the inner ends of which communicate with thelower end of the pipe M and the outer ends of which are open.

1? represents a pair of tubularsleeves, which are fitted on the outerends of the tubular arms 0, are longitudinally adjustable thereon, andare provided with setscrews It, by means of which they may be clamped tothe said tubular arms 0 at any desired adjustment.

S represents a pair of downwardly and outwardly. inclined hoods, whichare arranged at the outer ends of the extensible sleeves P and areprovided with collars T,which receive the outer ends of the sleeves P.Set-screws U work in threaded openings in the said collars, and areadapted to secure the same at any desired adjustment on the sleeve I.

The operation of my invention is as follows: The stone sawing or workingmachine (not shown) is arranged directly under the pipe M. Motion isimparted to the shaft P by means of a belt from a suitable motor passingover the pulley U, and the rotation of the said shaft 1? is communicatedto the tubular shaft V and the elevated screw by the gearing previouslydescribed. As the screw rotates it receives at each revolution aquantity of water mixed with sand and grits from the trough B, and thewater is carried upward by the rotation of the screw and discharged intothe trough A. The sieve O separates the gravel and the coarser particlesof grit from the finer particles of grit and sand, and thereby preventsthe same from entering the compartment D of the trough.

As the shaftrV rotates, its curved arms scoop up a quantity of waterwith sand and grits from the compartment D of the trough and cause thewater to enter the hollow shaft V and to flow through the same, as willbe readily understood. The rotation of the hollow shaft prevents thesand and grits from settling, and the water, together with the sand andgrits, is delivered fromthe outer end of the said shaft to the funnel Kof the sleeve 1. This sleeve, being attached to the shaft F,which isgeared to the hollow shaft V, is caused to rotate together with theshaft M and the radial arms 0'. The water, with the sand and grit, flowsdownward through the sleeve 1 into the shaft M, and from the latteroutward through the hollow arm 0, where it is dashed by centrifugalforce against the inner sides of the hoods S, which cause it to besprayed, and from which it drops onto the stone that is being worked orsawed.

The hopper A is arranged directly under the stone-working machine, andthereby receives the water and the grits as they drip therefrom andconveys the same to the trough B. The unused grits are caught up,together with the water, by the scoop-arm N at the lower end of thescrew, and are thereby fed again to the stone-working machine, as beforedescribed. The grits which havebecome powdered by the stone-workingmachine pass off from the trough B,together with a portion of thewater,over the lower end, 0, of the said trough, which forms anoverflow.

Having thus described my invention, 1 claim- 1. The combination, in afeeding device for stone-working machines, of a vertical rotating shaft,1, the radial hollow arms 0, communicating with the said shaft, and thehoods at the outer ends of the said hollow arms, for the purpose setforth, substantially as described.

2. The combination, in a feeding device for stone-working machines, ofthe vertical rotating hollow shaft 1, to which water and grits aresupplied, the vertical sleeve M, attached to the said shaft andvertically adjustable thereon, the hollow radial arms 0, extending fromthe sleeve M and communicating therewith, and are deflecting-hoods atthe outer ends of the said arms, for the purpose set forth,substantially as described.

3. The combination, in a feeding device for stone-working machines, ofthe rotating vertical hollow shaft 1, the tubular radial arms 0,communicating with the said shaft and rotating therewith, the extensiblesleeves P on the said radial arms, and the deflecting-hoods at the outerend of the said sleeves, substantially as described.

4. The combination of the vertical rotating hollow shaft 1, the radialhollow arms 0, communicating with the said shaft, the extensible sleeveson the outer ends of the said hollow arms, and the deflecting-hoodshaving the collars attached to the said sleeves and adj ustable thereon,substantially as described.

5. The combination, in a feeding device for stone-working machines, ofthe rotating in clined elevating-screw, the trough to receive the waterand sand from the said screw, and the rotating hollow shaft V, havingthe scoop-arms Z, working in the trough, for the purpose set forth,substantially as described.

6. The combination of the trough A, having the sieve C, and thecompartment D, with the rotating hollow shaft V, having the scooparmcommunicating therewith and working in the compartment D, substantiallyas described.

7. The combination of the trough A, having the sieve O, and thecompartment D, with the rotating hollow shaft V, having the scoop-armZ,working in the compartment D, and;the radial arm E,working in thetrough on the outer side of the sieve, substantially as described.

8. The combination of the elevating-screw, the trough to receive waterand sand therefrom, the hollow shaft V, geared to the screw and havingthe scoop-arms Z,working-in the trough, and the spraying device gearedto the said hollow shaft, and in which the contents of the latter aredischarged, substantially as described.

9. The combination of the elevated trough, the rotating hollow shaft V,having the scooparms Z, working in the trough, the vertical perforatedhollow shaft F, geared to the shaft V, and having the funnel K below thedischarge end of the latter, and the hollow radial arms connected to andcommunicating with the shaft F, substantially as described.

10. The combination, with the tubeV, of the vertical rotating tubularshaft F, having the beveled flange L above the discharge end of thetubeV and the funnel K below the same, and the radial hollow arms 0',communicating with and connected to the lower end of the tubular shaftL, substantially as described.

11. In combination with the elevating rotating screw F, the hollow caseL, surrounding the same and rotatingtherewith, the scoop N on the case,the trough A, communicating with the case L, the hollow shaft V, thescoop Z on the said shaft, working in the trough A, and

upper end, the hearing K, in which said shaft isjournaled,,the trough atthe upper end of the screw, the trough at the lower end thereof, and theanti-frictio11 rollers supporting the lower end of the screw,substantially as described.

18. In combination with the hollow shaft 1, carrying the sprayingdevices and having the funnel or supply-nozzle K, the hollow rotaryshaft V, discharging into the nozzle-funnel K, the scoop Z on the shaftV, the 'trough A, in which the scoop Z works, the rotating case L,communicating with the trough A, the screw F, working in the case L, andthe scoop N on the case, as set forth.

14. In combination with the hollow shaft 1, carrying the sprayingdevices, the hopper A, arranged under the spraying devices, the troughB, communicating with the hopper, the case L, carrying the scoop N,working in the trough B, the screw Fin the case, and the hollow shaft V,receiving its supply from the case L and delivering it to the shaft 1,as set forth;

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

PHILIP CHRISTA.

Witnesses:

F. G. RUssELL,

JOHN L. 1\ IOCLOUD.

